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IAD to LAS: distance & flight time
Washington (Washington Dulles International Airport) → Las Vegas (McCarran International Airport)
2,061 mi
3,316 km · 1,791 nm
4h 30m
estimated nonstop flight time
-3h
time difference · heading west
See live IAD→LAS fares Phone-only fares on this route — call free
Flight time details
2,061 miles nonstop takes roughly 4h 30m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time set-back when reading arrival times on your ticket.
The two airports
- IAD — Washington Dulles International Airport · Washington, United States
- LAS — McCarran International Airport · Las Vegas, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near IAD
Near LAS
- HSH · Henderson Executive Airport7 mi away
- VGT · North Las Vegas Airport9 mi away
- LSV · Nellis Air Force Base13 mi away
- INS · Creech Air Force Base45 mi away
Frequently asked questions
How far is IAD from LAS?
The flight distance from Washington (IAD) to Las Vegas (LAS) is 2,061 miles (3,316 km, 1,791 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAD to LAS?
A nonstop flight takes about 4h 30m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Washington and Las Vegas?
Las Vegas is 3 hours behind Washington.
What is the cheapest way to fly from IAD to LAS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–LAS that never appear on search engines, with no booking fees.